Pteris exigua (Pteridaceae), a new endemic species from Tucumano-Boliviano forests in northwestern Argentina
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Pteris exigua, an endemic species from the Tucumano-Boliviano forests, northwestern Argentina, is described and distinguished from similar species of Pteris that occur in this region.
Key Wordsdiversity endemism flora fern
We thank the curators of the herbaria studied (CESJ, CTES, FCAB, HBR, LP, MO, K, LPB, MCNS, RB, S, SI, SP, SPF, UPCB) for the loans and the Director of the National Parks of northwestern Argentina for all his support during the fieldwork. We also thank Pedro Villagrán by his help during the preparation of the SEM photos of the spores and María del Carmen Otero for preparing the drawings. This research was funded by the Consejo de Investigación de la Universidad Nacional de Salta, Argentina for the first author and by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), research grant n. 302732/2207-1 for the second author.
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